Sine-Wave Oscillator

rain301

This note describes the operational amplifier (op-amp) sine-wave oscillator, together with the
criteria for oscillation to occur using RC components. It delineates the roles of phase shift and
gain in the circuit and then discusses considerations of the op amp. A brief analysis of a
Wien-Bridge oscillator circuit is provided. Several examples of sine-wave oscillators are
given, although it is recognized that there exist many additional types of oscillator to which
the principles of this application note also apply.